Doesn't this work better in the context of personalized recommendations? Pandora is scarily good at this because it's an offshoot of the Music Genome Project, which analyzes the constituent parts of music (https://en.wikipedia.org/wiki/Music_Genome_Project?wprov=sfl... )
It combines that with your personal things up and listening history and predicts what other songs you yourself are likely to enjoy.
By contrast, up votes from strangers across genres seems unlikely to match your personal tastes.